77% (1967)

77% (2020)

78% (2006)

80% (2010)

69% (2015)

81% (2004)

81% (1969)

0% (1990)

57% (1995)

0% (1997)

81% (2002)

65% (2005)

70% (1979)

20% (2012)

67% (2013)

60% (1988)

61% (1990)

87% (2004)

40% (1971)

100% (1989)